Title:
熱分解法により製造された二酸化ケイ素、その製法、その使用、および該二酸化ケイ素を含有する水性分散液
Document Type and Number:
Japanese Patent JP4280719
Kind Code:
B2
Abstract:
The pyrogenically produced silicon dioxide powder has BET surface area of 90+-15 m 2>/g, and exists in the form of aggregates of primary particles. The aggregate has average surface area of 10000-20000 nm 2>, average equivalent circle diameter of 90-130 nm, and average circumference of 1000-1400 nm. Independent claims are included for the following: (1) production of silicon dioxide powder; (2) a method of using the pyrogenically produced silicon dioxide powder, comprising mixing the powder with rubber, silicone rubber, plastics, paints or coatings; (3) an aqueous dispersion containing the pyrogenically produced silicon dioxide powder; and (4) process of using aqueous dispersion.
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Inventors:
Kai Schumacher
Hauke Jacobsen
Ralph Brandes
Matias lohonia
Takeyoshi Shibasaki
Ishiyashi Nariyasu
Hauke Jacobsen
Ralph Brandes
Matias lohonia
Takeyoshi Shibasaki
Ishiyashi Nariyasu
Application Number:
JP2005035119A
Publication Date:
June 17, 2009
Filing Date:
February 10, 2005
Export Citation:
Assignee:
Evonik Degussa GmbH
International Classes:
C01B33/18; B01J21/08; B01J32/00; C08K3/36; C08L101/00; C09D7/12; C09K3/14
Domestic Patent References:
| JP2005001990A | ||||
| JP10212118A | ||||
| JP2002060214A |
Foreign References:
| WO2004054929A1 | ||||
| WO2004054928A1 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel